#include <iostream>
int main()
{
	//test 1.3 打印 "hello, world"
	std::cout << "hello, world" << std::endl;
	
	//test 1.4 打印两个数的积
	std::cout << "请输入两个数" << std::endl;
	int a, b;
	std::cin >> a >> b;
	std::cout << a << "和" << b << "的乘积为"
		<< a * b << std::endl;
	
	//test 1.5 将每个打印对象放在独立的语句中
	std::cout << "请输入两个数";
	std::cout << std::endl;
	//int a, b;
	std::cin >> a;
	std::cin >> b;
	std::cout << a;
	std::cout << "和";
	std::cout << b;
	std::cout << "的乘积为";
	std::cout << a * b;
	std::cout << std::endl;
	
	return 0;
}